Container



Jan. 12, 1943. H. A. EGGERSS 2,307,923

CONTAINER I Filed July 3]., 1940 I l6 l3 9 4 l9 3 II 8 w A A IyZ $6 I )5RNVENTOR was A, Eggzrss.

BY *WEW ATTORNEYS f zsgem chime.

' rsrenu d' -isaiz. i943 PATENT oFF cE My invention artist. enamels, 1tto r portion and the head.

do. more particular y. with a barrel or'container 'thatis formed p mly'of such material as fiber board, pulp board-or. paper or straw board,

although it is notv necessarily limited thereto.

. One of the objects of my'inventlo'n is to pro vlde a fiber barrel orcontainer of such a nature that the bottom headxwill be securely heldilrposition and the associated chime structure will be of sucha naturethat-it will withstand the excessive blows to which a container of'thistype 7,

insprovide body por o mammwm, on Application July 31,1940, serial No.34am 4 (oi. see-5.5)

The preferred. embodiment'of my invention is illustrated in theaccompanying drawing wherein similar characters of reference designateoorrespending parts and wherein:

Figure 1 is aside elevation, partly broken away,

1 illustrating the lower portion of a cylindrical made of flber board orother similar material and-which has open ends. The extrerne lowerend'of the fiber board body portion is embraced by a metal band whichisfirmly secured thereto. is heed of heavy iiber material isplsced in thelower end of the body portion. In order to firmly hold the head inposition, the fiber body portion together with thesurroundins metalband-are bent to form a continuous internal groove, the walls of whichtightly embrace the top and bottomsurfaccs of the head adjacent itsperiphery. when the body portion and the reinforcing metal band arebent, a continuous external groove is formed therein at a point spacedabove the head. This serves .to provide a resilient Joint which willeffectively withstand the shocks applied to the lower chime in order toprovide a fluid-tight seal between the head and the body portion, thecontacting surfaces of the body portion and; the head are provided withlining or coating, preferably of thermoplastic material.- After thecontainer has been formed, as indicated above, it is subjected to aheating operation which will cause the ad- 'lacent layers or coatings onthe cooperating head I and body portion to adhere to each other and forma fluid-tight joint. The lining of the thermoplastic material ispreferably applied to the entire inner surface of the fiber body portionto seal the pores of the fiber material. During use of the container,the resilient structure pro viously referred to will prevent pullingapart of container which has a lower end structure according to myinvention. v Figure 2 is a detail, in vertical section, of the lower endstructure showing theparts assembled and ready for a flnsl form ng opcnt Fi ure 3 is a similar view showing the lower end structure after thefinal forming operation.

With reference to the drawing, I have shown a barrel structurecomprising a body portion I which may be of suitable fiber material.This body portion is preferably of cylindrical form and may be producedin any desired manner.

As indicated in Figures land 3, when the lower head structure is finallycompleted, it embodies a'disk-like head 2 which is held in positionwithiiia continuous internal groove 3 formed .in the lower end of-thebody portion. A continuous external groove I is formed above the a headin the body portion to provide a resilient chime structure.

In formingthis bottom head structure, as indi- "and in Figure 2, a disk5 is inserted into the lower end of the cylindrical shell I. The disk 5is preferably made of heavy fiber material similar to the shell I and isJust slightly smaller in diameter than the shell I. A'tray Ii of fibermaterial is also inserted into the lower endxof the shell I below disk5. This tray 6 embodies,

' a disk-like body portion and a downwardly exand prevent crushing-ofthe' tionship with the end of the shell as at 8. A

I tending peripheral flange I, Theilange 1 extends downwardly along theinner surface of the shell I and then outwardly intooverlappingrelareinforcing metal band 9 is then positioned in surroundingrelationship to the lower portion of the shell or body portion I. Thisreinforcing metal band has a U-shape lower end I Ii which extends aroundthe lower end of the shell I and then upwardly into overlappingrelationship with the inner surfaces of the shell I and the flange I ofthe tray 6.

The assembled unit indicated in Figure 2 is then subjected to a finalforming operation. This final forming operation will bend the fiber bodyportion or shell I together with the metal reinforcing band 9 in themanner indicated best in Figure 3. The lower end of the body portiontogether with the metal band is bent into overlapping relationship withthe outer surface of the head. lhe lower portion ill of the band 9 andthe extreme end of the body portion I will be curled or beaded, asindicated at II, and will be forced into the lower surface of thecooperating disk and tray 6, forming therein a continuous groove l2which is spaced slightly inwardly from the edge of the disk 5. Thisgives a bulging action at the point I3 which adds further to thetightness of the joint. When the body portion and the band 9 aresimultaneously bent, the external groove 4 is formed therein. B'yforming this continuous external groove 4. there is produced an inwardlyprojecting rib H which is spaced from the end of the body portion andagainst which the disk 5 is clamped.

It will be apparent that the continuous internal groove 3 is formedwhich receives the head struc ture and tightly embraces it. By formingthe external groove 4, a resilient chime structure is produced. Any blowapplied to the lower end of the container at the point IE will merelyserve to cause the walls of the groove 3 to more closely approach eachother and grip the head structure therebetween. Similarly, the walls ofthe external groove 4 will flex towards each other and will absorb theshocks applied to the end of the container.

In order to provide a fluid tight seal between the head and the bodyportion, the inner side wall of the shell I is provided with a coatingor lining 16. Similarly, the upper surface of the disk 5 is providedwith a lining I 8 which may also be a coating, and this lining extendsdown wardly over the edge of the disk and down over the outer surface offlange 'I of member 6, as indicated at i9. This lining also extends overthe end of the shell I as indicated at 20. Thus,

the cooperating portions of the head and the fiber body portion areprovided with these coatings or linings which will be in contact witheach other.

The linings or coatings l6 and I 8 preferably consist of a suitablethermoplastic substance or other self-adhering substance of such anature that the two adjacent linings or coatings will adhere to eachother when subjected to heat. For example, I may use P1iofilm" orVinylite" as the coating or lining material. The coating material may beapplied by spraying, flashing or other means or may be as'a separatesheet. The coatings or linings are applied to the head and shell beforethe container is assembled as indicated in Figure 2. After the containeris as sembled as indicated in Figure 2 and preferably after it is formedas indicated in Figure 3, the container is heated to cause the twolayersli and I8 to adhere to each other. Any suitable temperature may beused depending upon the type of coating employed. When I use Pliofilm, Imay employ a temperature of about 270 F. This temperature mayvbedeveloped during the drying or evaporation of a liquid vehicle presentin the fiber part of the container. It is preferable to heat thecontainer to remove the water present in the fiber material or to set upthe adhesive used for joining the layers of material used in producingthe fiber material. This heating operation will simultaneously cause thecoatin s iii and Hi to adhere to each other.

It will be apparent that a fluid-tight seal will be produced between thehead and the body portion in this manner. The fluid-tight feature ofthis joint is particularly enhanced by the resiliency of the chimeconstruction which permits flexing of the chime, such as would developon rolling or dropping the container on the chime, and which willprevent pulling apart of the coatings l6 and I8.

It will be apparent from the above description that I have provided afiber barrel structure of such a nature that the bottom head is securelyheld in position and the associated chime structure is of such a naturethat it will withstand the excessive blows to which the container ofthis type is subjected in normal use. Furthermore, it will be apparentthat I have provided effective means for producing a fluid-tight sealbetween the head and the body portion.

Various other advantages will be apparent from the precedingdescription, the drawing and the following claims.

Having thus described my invention, what I claim is:

1. A container structure comprising a body portion made of fiber boardor the like. a metal band surrounding the outer periphery of said bodyportion at the end thereof, overlapping such end and extending intooverlapping relationship to the inner periphery thereof, a barrel headadapted to be inserted in the end of said body portion, said barrel headincluding a disk of heavy fiber material and a disk of flexible fibermaterial disposed on the outer surface thereof and having a flange, saidbody portion together with the surrounding metal band being bent in sucha manner that there is formed a. continuous rib which extends inwardlyfrom the side wall of said body portion and supports and prevents inwardmovement of said barrel head and a continuous flange on the extreme endthereof which extends into overlapping relationship with the outersurface of said head, said last-named flange having a continuous bead onits inner surface which fits into a continuous groove formed in theouter surface of said head adjacent the periphery thereof, said flan'geon said disk of flexible flber material on said barrel head extendingbetween said metal band and said body portion.

2. A barrel structure comprising a body portion made of fiber board orthe like, a barrel head adapted to be inserted in the end of said bodyportion, said head including a disk of heavy fiber material and a diskof flexible fiber material disposed on the outer surface thereof. saidlastnamed disk having a peripheral continuous flange formed thereon, ametal band surrounding the outer periphery of said body portion at theend thereof, overlapping such end and extending into overlappingrelationship to the inner periphery thereof, said body portion togetherwith said metal band being bent in such a manner that a rib, whichextends inwardly frolnthe side wall of said body portion, is formed forpreventing inward movement of said barrel head, the forming of saidinternal rib being also adapted to produce an external groove, said bodyportion and metal band being also bent in such a manner as to produce aflange on the extreme end thereof which extends into overlappingrelationship to the outer surface of said head, said last-named flangehaving a continuous bead on its inner surface which fits into acontinuous groove formed in the outer surface of said head adjacent theperiphery thereof, said peripheral continuous flange on the flexiblefiber disk of the head extending between the body portion and theportion of the metal band which extends into overlapping relation-shi tothe inner periphery thereof.

3. A container structure comprising a body D01- tion made at flber boardor the like, a metal bande ou r perip e y of naklbody D01?tionatthaendthereotoverlawinasuchendand extending into overlappingrelationship to the inner periphery thereof, a barrel head adapted tobeinserted'in the end or said body portion saidbarrelheadinehidinsarelativelyrisiddiskand a disk 01' flexible materialdisposed in superimposed relationship, said body portion together withthe surrounding metal band being bent in such a manner that there isformed a continuous rib which extends inwardly from the side wall ofsaid body portion and supports and prevents in-, ward movement'oi suchbarrel head and a continuous flange on the extreme end thereof whichextends into overlapping relationship with the outer surface oi saidhead, saidlast-named flange having a continuous bead on its innersurface which flts into a continuous groove formed in the outer suriace0! said head adjacent the periphery 4. A container structure comprisinga body portion made or fiber board or the like, a metal membersurroundinathe outer periphery of said body portion at the end thereof,overlapping said end and extending into overlapping relationship to theinner periphery thereof, a barrel head adapted to be inserted in the endof said body portion, said body portion together with the surroundin!metal member being bent in such a manner that there is formed acontinuous rib which extends inwardly from the side wall of said bodyportion and supports and prevents inward movement of thereof, said diskor flexible material of the barrel head having a portion which extendsbetween said metal band and said body portion.

